This is a procurement for a critical safety aircraft fan duct, with a required delivery of 3 units on or before December 29, 2027, to destination SW3211. The government intends to solicit and negotiate with only one or a limited number of approved sources, which are listed. This is not a request for competition, but proposals received within 45 days of the synopsis publication will be considered. The acquisition involves military technology, and the government's obligation is contingent upon the availability of funds.